WIKA UPT-21 - Handbuch (Seite 11)

11 WIKA operating instructions process transmitter, model UPT-2x
14068347.01 06/2014 GB/D
GB
3. Specifications
3.2 Accuracy data
Accuracy at reference conditions
Including non-linearity, hysteresis, zero offset and end value deviation (corresponds to
measured error per IEC 61298-2).
Accuracy
Standard 0.15 % of span
Option 1 0.10 % of span
Option 2 0.20 % of span
Mounting correction
-20 ... +20 %
Non-repeatability
≤ 0.15 % of span
Behaviour with turndown (with accuracy 0.15 %)
Turndown = basic measuring range : scaled measuring range
■ 1:1 ... 5:1 No change in accuracy
■ > 5:1 < 0.03 % x turndown
Long-term stability
≤ (0.1 % x turndown)/year
Thermal change zero point/span (reference temperature 20 °C)
In compensated range 10 ... 70 °C:
< 0.05 % / 10 K x turndown
Outside compensated range:
Typical < 0.1 % / 10 K x turndown
Thermal change of the current output (reference temperature 20 °C)
< 0.05 % / 10 K, max. 0.15 %